Torch Azalea
Rhododendron kaempferi
Ericaceae · broadleaf evergreen shrub · introduced
Last updated
Data Coverage 5 of 6 dimensions
[VERIFY] Evergreen azaleas perform well in Puget Sound Zone 8b with proper siting. Acidic soil is essential; our native soils trend acidic which is favorable. Part shade is ideal; morning sun with afternoon shade reduces lace bug pressure. Good drainage is critical given our wet winters.
— Chris Welch, ISA Certified Arborist
Quick Facts
Height
4-8 ft
Spread
4-6 ft
Growth Rate
Moderate
Light
Part Shade
Soil
Well Drained
Water
Moderate
Hardiness
Zone Zones 5a–8b
Bloom Time
April-May
Fall Color
[verify]
Origin
Japan
Phenological Calendar
| Stage | Typical Window |
|---|---|
| New leaf + flower bud BBCH 11/51 | Mar 15-Apr 15 |
Diseases (2)
Pests (1)
Cultivars (1)
'Johanna'
Deep red flowers; compact form; evergreen in Zone 8b
Observed at Issaquah, WA. Bright green new growth with red flower bud forming at center of leaf whorl.